Meeting Donald Trump at the White House can be a bruising encounter for most world leaders at the best of times, but eagle-eyed observers have noted the US President appeared to have picked up an injury himself.

President Trump is known for his strident handshakes which he often employs with visiting heads of state as a form of power battle straight out of a business boardroom.

On Monday Mr Trump met French President Emmanuel Macron in Washington for talks on Russia's invasion of Ukraine, with Washington and Europe seemingly at odds over how to end the conflict.

Mr Macron and Mr Trump are well known for their so-called 'handshake battles' from previous meetings, and the French leader, 47, and the 78-year-old Commander-in-Chief didn't disappoint on Monday with a series of hand-grappling exchanges.

But cameras in the White House have picked up what appears to be an angry bruise developing on President Trump's right hand, which was noticeable as the two presidents sat next to one another to answer questions from reporters.

Many people commented on the bruise online and speculated about how Mr Trump got the injury.

One person wrote on X: "Trump has a massive bruise on the back of his right hand. How did he get that? Is it from an IV? Did he fall? What aren't we being told about his health?"